"We went in and ended up being in the studio till six in the morning, came out with a song, went in the next night and then ended up writing, like, 12 songs in seven days, working all night," he explained.

"We're both very different people and we're both inspired in very different ways but I was able to come in and play some guitars and we were able to write some beautiful songs together, pretty acoustic-sounding, so you'll hear some music this year."